Domestic hot-water-supply system



C. W. OWENS. DOMESTIC HOT WATER SUPPLY SYSTEM APPLICATION FILED Patend Mar. 22, 1921.

UNITED STATES PATENT OFFICE. y

` CHARLES' WILLIAM oWENsor roNTARDAWEyWALEs.

To all whomz't may concern y y f Be it known thatl, CrnrnLnsf VILLrAM Owens, a subject ofthe "Kingof Great Britain, residingi at Pontardawe, `in the county. or' GlamorgamSouth Wales Great Britain7 have invented certain new and -useful Improvements in Domestic Hot-Wateri" l Supply Systemsrof which the following is" a specification.`

This invention relates `to improvements in domestic hot watersuppjly circulating sysL Y tems of that kind inwhich the".u`sual` hot water` storage tank or circulating "cylinder is dispensed with, and the object" of the present invention is `to provide a construction or arrangement in which a substantially open supply cistern, `at avsuiicient elevation is employed `connected with `a pressure boiler by means of iiow `and return pipes, `but into which cistern` cold water from `the main water `supply shall not be directly admittedas "has usually been the ner.

y With this arrangement it will be readily case.

Accordingto the" present inventionit is" proposed to employ an open cistern at a "sufi icient elevation and to connect such a cistern by iiow and return pipes directly to the pressure boiler, butin order that the cold water supply shall not be admitted directly into said cistern the "cold 'water inl'etis con-` nected by means of a suitable communicating pipe tothe -return pipe leading to the pressureV boiler. The said cold Water inlet is governed by a ball cock in the usual manseen, the ordinary circulation through the iiovv and return pipes and the pressure boiler will not be interfered with,`but `the admis sion of the cold water to the return pipe will eifectually prevent the said cold water mixing with the hot water already in the cistern when the system is in operation and moreover will induce a more rapid circulation through the `pressure boiler. A larger supply oi`- hot water will by this means be available owing tofthe fact that the cold water.` supply to the cistern passes `l`firstly through `the pressure boiler before it reaches the cistern and thus substantially the whole contents of `the said cistern can be drawn oil` before the water contained therein becomes appreciably cooler.

In order that the invention may be clearly understood reference is made to the accom-` panying drawing in which Figure l is a secfnoMEs'rIo Korbwaren-Surfin? system.

h i Specification of Letters Patent. i Patented lli-a1. 22, "1921. Application med May 1s, 1920.. 'serial req.` 332,424. i

tional viewpof a storage cistern showing the improvements accordingto this inven- `tion,` and Fig; 2 is a diagrannnatical `view showing the improved storage tank and its connectionsto a domestic hot Vwater supply circulating system. In these figures,`1 represents `a cistern or tank of usualand known construction. This cistern has a detachable cover 2,` which may be provldedwlth an air or steam vent nectedtwith the main supply and has a ball cock 5 `for controlling the admission of cold water and 6 is an overflow pipe.` 7 and8 are the flow and `returnpipes respectively Atol the pressure boiler 9,`"and 10 "is a pipe through which the house supply may be `drawn oii; Thispipe 10 is connected to the 8 `as the house lsupplyis drawnfodf, owingto `tlremain supply being out ofby frost or other unforseen` circumstances.

`1` To the return pipe Slat a point 11 just below its inlet end inthe` cistern 1a vertical pipe 12 is attaclied,`tlieupper end `of said pipelQ` having a funnel shapedmouthpiece 13 situated just below the cold water inlet 4c and above the high Water level 14C in the cistern 1. A supply Voii cold water to the system is thus permitted without said water supply entering the cistern 1 until it has first passed through the high pressure boiler 9. Of course it is obvious that instead of providing the pipe 12 With a funnel top 13, the said pipe 12 might be directly attached or connected to the ball valve 5 by a screw union or other means although the form shown is preferred by reason of its accessibility.

From the foregoing description it will be readily seen that `practically the Wholeof diminution in the temperature of the water contained therein, that an improved circulation will be obtained and that the ordinary circulation of the water through the system will not be interrupted. l

What I claim as my invention and desire to secure by Letters atent is 1. In a domestic hot water sup ly circulating system having an open tan servlng The usual cold water inlet pipeilis con Y V as ahot Water storage and supply cistern, a

20. f ivithlthe said return pipe of the system at a e tween said lend of the said return pipe,

'How and'return pipes between said pressure boiler Vand said storage and supply cistern having open ends vvithinfsaid cistern, and a `'float-governed Coldwater supply valve Within saidv cistern and a communicating pipe connecting the cold water supply valve .point below the upper open end of the said K return pipe and .Within said storage and l supply cistern tosupply cold Water directly i to said return-pipe, the open ends of bot -said iloW and return pipes projecting Within said'open storage and supply cistern.

'3, Injadomestic hot Water supply circulating system, the combination with an open tank serving asa-hot water storage and supply cistern,- a pressure boiler, flo-W and return pipes between said pressureV boiler and said storage andsupply cistern, of a of said return float-governed cold Watersupplyvalve within 'said cistern; a vertical pipe Within the cistern connected at itslower end to said returnpipe at a point below the open end pipe and Within said storage and supply cistern, the open ends of said cistern and having the outlet of said cold Water supply valve located Within the said funnel shaped mouthpiece of said vertical pipe, to supply cold water directly to said return pipe.

4. In domestic hot water supply circulating systems having an open tank serving as a hot water storage and supply cisteln, a pressure boiler, How and return pipes between said pressure boiler and said supply cistern, and a Hoet-governed cold water supply valve; a vertical pipe connected at its lower end to said return pipe at a point be` low the open end of said return pipe and Within said storage and supply cistern, the open ends of said iow and return pipes projecting Within said open storage and supply cistern, a funnel shaped mouthpiece fitted to the upper end of said vertical pipe and located above the high Water level of said storage and supply cistern and having the outlet of said cold Water supply valve loca-ted Within the said funnel shaped mouthpiece of said vertical pipe, and a hot water delivery pipe connected to said cistern above the level of the open ends of said liovv and return pipes Within the said cistcrn.

yIn witness whereof I have hereunto set my hand in the presence of two witnesses.

SYDNEY GEORGE EDMUNDS, PHILIP MORGAN LEWIS. 

